When should I use
encryption?
Your company po
licy will determine when you need to use encryption. For example, it may be ma ndatory
for company confidential and financial data, but not for p ersonal data. Company policy will also d efine
how encryption keys should be generated and managed. Backup applications that support encryption
will generate a key for you or allow you to enter a key manually.
NOTE:
Encryption wi
th keys that are generated directly from passwords or passphrases may be less secure than
encryption using truly random keys. Your application should explain the options a nd methods that are
available. Please refer to your application’s user documentation for more information.
How do I enable encryption?
Hardware encryption is turned off by default and is switched on by settings in your backup application,
where you also generate and supply the encryption key. Your backup application must support hardware
encryption for this feature to work. The software supplied with the tape drive provides this suppor t. See
h
ttp://www.hp.com/go/connect for an up-to-date list of other suitable backup software.
When will I be asked to enter the key?
Encryption is primarily designed to protect the media once i t is offline and to prevent it being accessed
from another machine. You will be able to read and append the encrypted media without being
prompted for a key as long as it is being accessed by the machine and application that first encrypted it.
There are two main i nstances when you will nee d to know the key:
• If you try to impor t the media to another machine or another instance of the backup application
• If you are recovering your system after a disaster
What h appens if I don’t remember the key?
If you are unable to supply the key when requested to do so, neither you nor HP Support will b e able to
access the encrypted data.
This gua rantees the security of your da ta, but a lso means tha t you must be careful in the management
of the encryption key used to generate the tape.
WARNING!
You should keep a record or backup of your encryption keys and store them in a secure place separate
from the computer running the backup software .
Does encryption affect tape drive p erformance?
Hardware encryption can be used with or without compression and without speed or capacity penalties.
Does the tape drive encrypt media in an earlier Ultrium format?
No. Encryption is supported only on Ultrium 1.6 TB media (C7974A or C 7974W).
Ultrium 1.6 TB tapes encrypted on an HP Ultrium 1760 (or HP Ultrium 1840) tape drive can be read on
any co
mpatible Ultrium 1760 (or Ultrium 1840) tape drive that suppor ts hardware encryption.
HP Ultrium 1760 tape drives can read Ultrium 800 GB and Ultrium 400 GB med ia and write Ultrium 800
GB media, but hardware encryption is not suppor ted on these formats.
Ultrium half-height SAS Tape Drives
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